Kamijou Touma is a student living in Academy City, a highly advanced place in terms of technology. Despite being gauged as a level zero esper (no powers), he possesses on his right hand the Imagine Breaker, an ability that negates any power whatsoever. Touma finds a young girl named Index who is trying to run away from Necessarius, a powerful magic organization that she is member of. Blessed with the skill of memorizing any sort of information, she holds 103,000 forbidden magical books within her head. As science and magic cross paths, Touma must face several dangers amid espers and magicians who appear at the exciting scientific town.
Index is still a fugitive and many powerful magical organizations and individuals want to take her to use the books in her memory, eliminating her in the process. War between those organizations is also starting to emerge. Index can only rely on her friend Tōma, who has always protected her, along with Misaka and other friends from the Academy.
In 1972, the Apollo 17 mission discovered a hypergate to Mars on the surface of the moon. Soon a war breaks out between Earth and Mars, and Martian soldiers begin to descend from the sky, riding steel giants, intent on exterminating humanity.
Godō Kusanagi is a 16-year-old high school boy, who once killed the god "Verethragna" and acquired the title of "Campione" ("God Killer") when he was 15. Erica Brandelli is a 16-year-old Italian girl, who is a "Great Knight" of the magic society "Bronze Black Cross" and had fought together with Godo to defeat Verethragna. Godo doesn't like fighting but his title of "Campione" makes him get involved in battles against other Campiones and uncontrollable gods.
The Empire of Britannia has invaded Japan using giant robot weapons called Knightmare Frames. Japan is now referred to as Area 11, and its people the 11's. A Britannian who was living in Japan at the time, Lelouch, vowed to his Japanese friend Suzaku that he'd destroy Britannia. Years later, Lelouch is in high school, but regularly skips out of school to go play chess and gamble on himself. One day, he stumbles on terrorists 11's who've stolen a military secret and is caught by a member of the Britannian task force sent after them, who is Suzaku. As the rest of the squad arrives, Suzaku is shot for disobeying orders, while the military secret, a young girl, gives Lelouch the power of Geass, which makes anyone obey any order. While Suzaku is secretly made the pilot of Britannia's brand new prototype Knightmare, Lancelot, Lelouch becomes the masked Zero to lead the rebellion to destroy Britannia once and for all.
It's been one year since the failure of the Black Rebellion and the supposed death of Zero. Britannia has assigned Area 11 a "correctional education" status, where Elevens are made an example of by brute force, to try to prevent any future uprisings and suppress rebellious thoughts. Unsuspecting high school student Lelouch, oblivious to his rebellious past as Zero, stumbles upon a scheme on his life and the life of a mysterious woman known as C.C., who reveals to him his forgotten purpose and his "true" self. Destroying his assailants and declaring himself Zero once again, Lelouch sets out to finish what he started.
A gate appears in Tokyo's Ginza district sometime in the 21st century. From the gate pours out monsters, knights from middle-age Europe, and other fantasy-like beings, and they kill many of the citizens of Tokyo. This event is known as the Ginza Incident. The government sends a small group of soldiers from the Japanese Self-Defense Forces to the alternate world beyond the gate. Led by otaku soldier Yōji, they find that the villages in the world are being attacked by a dragon. An elf girl who is a survivor from the dragon's rampage joins the group in their travels across the dangerous new world.
The year is 1987 and 17-year-old Jotaro Kujo finds himself suddenly plagued by a ghost-like entity. Jotaro’s grandfather Joseph Joestar, a veteran of a fight to save humanity fifty years prior, arrives with his own supernatural aura and explains that this power, known as a “Stand,” physically manifests its user’s spirit and can be controlled by its user at will. The sudden emergence of these Stands is revealed to be caused by the revival of the megalomaniacal vampire DIO (the Joestar’s longtime enemy) whose awakening from his century-long slumber has triggered Stands to awaken down the Joestar family line, including in Jotaro’s mother whose uncontrollable Stand will ultimately kill her in a few weeks’ time. Jotaro, Joseph, and their allies have fifty days to locate DIO (using their Stands to thwart DIO’s network of devoted Stand-user minions along the way) and eliminate DIO himself in order to save Jotaro’s mother and prevent DIO’s ambitions of world domination.
After 30 grueling days of fighting off wave after wave of assassins sent by the megalomaniacal vampire DIO (all the while traveling by plane, train, and automobile from Japan, through Southeast Asia, and across the Middle East), Jotaro and his allies have made it at last to Egypt where DIO lies in wait. DIO, striving to end the Joestar line that has stood in his way for 100 years, sends his final and most fervent team of Stand-user followers, the 9 Egyptian Gods, to eliminate Jotaro and his allies. Jotaro and his party now have only two weeks to make their way to DIO’s hideout in Cairo and eliminate him before Jotaro’s mother succumbs to DIO’s curse.
Set in an alternate-universe Brazil, Michiko to Hatchin tells the story of Hana Morenos. Hana is routinely abused by every member of her adopted family, that only takes care of her because the government pays them to do so... until one day, an escaped convict named Michiko Malandro crashes through their kitchen window on a motorcycle, claiming to be Hana's real mother. Confused but willing to do anything to escape, Hana agrees to go with her...
Suddenly, high school student Subaru Natsuki has been summoned to another world on the way back from the convenience store. With the biggest crisis of his life being summoned to another world, and with no sign of the one who summoned him, things become even worse when he is attacked. But when he is saved by a mysterious, silver-haired girl with a fairy cat, Subaru attempts to return the favor by helping her track down something that was stolen from her. When they finally manage to get a clue, Subaru and the girl are attacked and killed by someone. Subaru then awakens in the place he was summoned and notices he gained the ability "Returns by Death" and has become a helpless boy that only has the ability to rewind time to a certain point by dying. Beyond the despair, can he save the girl from the fate of death?